On 1/9/2014 10:28 AM, Paolo Andretta wrote:
> 
> I want to block all UDP traffic from servers in natted DMZ. Except DNS 
> traffic that I think is the only needed.
> 
> My solution is:
> 
> 
> DNS(ACCEPT)  dmz:192.168.110.0/24     all
> DROP         dmz:192.168.110.0/24     net:!8.8.8.8,208.67.222.222  udp
> 
> Where 8.8.8.8 and 208.67.222.222 are the DNS in /etc/resolv.conf
> 
> 
> I still have slow connections and name resolution.
> 
> Is there a better solution?

To start with, I would add logging to the DROP rule so you can see what
that rule is blocking; that might give you a clue...

-Tom
-- 
Tom Eastep        \ When I die, I want to go like my Grandfather who
Shoreline,         \ died peacefully in his sleep. Not screaming like
Washington, USA     \ all of the passengers in his car
http://shorewall.net \________________________________________________

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